Long term running totals

 Our app currently computes and stores a long-term running total per user (e.g. cumulative mileage since a bike component was last serviced), derived by summing Strava activity distances over time. Section 5.5 of the API Policy prohibits storing "Strava Data, or any data derived from Strava Data, in any Persistent Index," and Section 6.2 limits caching of Strava Data to 7 days. Does this restrict indefinite storage of a computed running total like this, or does it apply only to cached copies of raw API responses (activities/gear payloads)? We want to make sure our data model is compliant before scaling past our current single-user use.